You know, a lot of things have very interesting structures when seen under microscopes. One of the more facinating structures that have evolved is that of the bacteriophage, as it looks like a little machine, but as far as we know that is just how it evolved, so I don't doubt that natural substances and creatures would have an odd looking structure. I also want to reference the pelican, or assassin spider. Their bodies have evolved a tower-like head to be able to attack spiders from an angle that normal spiders can't defend from, and to those who've never seen it, it is definitely alien looking.

"Frustration is simply 'I can't'. Hate is simply 'I'm not'. Fear is simply 'I won't'. Negative emotions stem from resistance, and when you flow with the current rather than against it, that negativity will dissolve and your life will improve." ~Kitsune, companions, and friend

"Do not meddle in the affairs of Dragons, for you are crunchy and taste good with ketchup"